Analysis of three-dimensional scenes

摘要

A method for processing data includes receiving a depth map of a scene containing a humanoid form. The depth map is processed so as to identify three-dimensional (3D) connected components in the scene, each connected component including a set of the pixels that are mutually adjacent and have mutually-adjacent depth values. Separate, first and second connected components are identified as both belonging to the humanoid form, and a representation of the humanoid form is generated including both of the first and second connected components.

主权项

1. A method for processing data, comprising:
receiving a depth map of a scene containing a background and one or more foreground objects that conceal and cast a shadow on parts of the background, the depth maps comprising a matrix of pixels, at least some of which have respective pixel depth values and correspond to respective locations in the scene; using a digital processor, processing the depth map in the sequence so as to identify an area of the shadow, in which the pixels have no depth values in the depth map, with a foreground object that is adjacent to the identified area and casts the shadow in the area such that the identified area of the shadow includes only the pixels with no depth values that are located within a predefined maximum shadow width of the foreground object; constructing, based on the depth map, a background model of the scene that includes the identified area of the shadow adjacent to the foreground object; and segmenting the depth map using the background model.